Reversible wheeled plow



Nev; 10,1925. M. L. ANDREWS REVERSIBLE WHEELErD PLOW Filed July. l,

4 Sheets-Sheet 1 fired July 1, i920 4 Sheets-Sheet 2 No'v. 4l()l 1925'REVERSIBLE WHEELBD PLOW Filed July l, v1.920

4 Sheets-Sheet 3 1,560,639 M. L. ANDREWS Nov. 10 l925- M. L. ANDREWSREVERSIBLE WHEELED PLOW Filed July .1. lso

Patented Nov. 10, 1925.

UNITED STATES PATENT OFFICE. j

MARTIN L. ANDREWS, OFMILLERTON, PENNSYLVANIA, 'AssrGNoR 0E oNE-'HAJL'E'To LUELL J. ROBERTS, 0E SABINsvILLE, PENNsYEVANIA p REVERSIBLE WHEELERPLoWJ I Application filed July 1,

To all whom t may concern:

Be it lmownthat I, MARTIN LIANDREWS, a citizen of the United States, andresiding at Millerton, Tioga County, State of Pennsylvania, haveinvented certain new and useful Improvements in Reversible WheeledPlows, of which the`following is a specication.

The general object of the present invention is to provide a plow of thereversible type utilized in plowing back. and forth across a field, thesuccessive furrows being parallel and adjacent, in which are embodiedimprovements rendering the same eflicient and convenient in use.

One specific object is to provide a wheeled plow with a plurality ofreversible plowing devices. Another object is to provide a plow of thisclass in which the reversal of the plows at the end of the furrow isbrought about iquiclly and easily, the power necessary being obtainedfrom the horses or tractor employed to pull thesame. further object is.to provide suchia plow ink which the reversal of plow blades is effectedby the l .direct raising and lowering ofthe plow beams, which may bedone quickly, not only at the end of the furrowbut Aat any pointtherealong if desired. The invention also has for an object theprovision of Vnovel4 structure by means of which the plows aremaintained at al constant distanceapart in the plowing operation, butwhich mechanism permitsy the plows vto move in'4 unisonl from sidetoside slightlyV due to inequalities in the ground and to avoid rocks,etc. f

The invention may be embodied inivarious Y -forms and one satisfactoryformas disclosed '6-6 VoA'fFigure 2; and v inthe kfollowing. descriptionand 'in the'4 accompanying drawings, in which:

AFigure 1 is'a top view of a'two-beampl'ow, the plowsbeing in raised ,orinoperative .position; y Y i -jr Figure 2'is a similar-view but showingthe plows in lowered or cutting position;

Figure 3 is a side Yview of the. plow; Figure 4 is a section` on line 44 of Figure 1; 1

Figure 5 is a view from the rear, portions of the mechanism beingomitted; Y

Figure 6 is an enlarged section on line A'Figure 7 is a view from therear VOpf/'the apparatus showing the plows inraised posi- 1920. seal Nq.393,24?.

tion lfull lines `and in lowered or cutting position in dotted lines.

The frame of the plow comprises lthree longitudinal parallel members 10,11 and 12 I secured together vat their forwardends by cross-pieces 13and 111 and beingfconiiected at theirrear ,endsl bythe 'axle' 15`r whichpasses through bearings ineach longitudinal member and is freelyrotatable relatively to lthe frame.y Wheels 116 ofjthe usualgfrarmimplement type are mounted von theenrdsof` shaft 15A and' parallellinkage comprising i members 19, 20,21 and 22 maintains sleeves 17aconstant distance apart, the' side menibers 2O and 21 of thelinkagebeing slotted at 23, and 241 respectively to receive 'pins 25 andv 26projecting upwardly from sleeves 17. To 4the rear end of each plow beamVis rigidly vsecured av right lia-nd plow 27 vand a left hand plow-128ai'idAto4 the. frontlendgof each beam is secured a crosshead member 29,the

endsy of each of which are adapted toslide longitudinally of theplowbody in slotted members 30, through llimited distances. Each of the plowbeams' is grooved at v31, clearly illustrated inFigure-t, this groovemaking a quarter turn in its length and hav- Ving extending downwardlythereinto a lug 32 integral with .a 'non-rotatable' sleeve 17. Each beamrotates through -o when the crosshead attached thereto, and whichvlimits i l its motion in both directions, ismoving from y .one end ofslotted member 30 to the other.`

Each of the sleeves 17 is latched to the corresponding crosshead 2,9 Abya pivoted latchmember 33 and each of the crosshead members 29 isnormallylatched tothe cross I piece 14 by a U-shaped latch member Bthaving ahandle 35 integral therewith and Ijourynaled. upon shaft 36, clearlyillustrated: in

Figure 6.; Immediately in frontof each of which it isfrigidly secured,rod 39, ring member 40 to which the'rod39 is rigidly secured, and arm41. extendingrearwardly and passyarms 35 is oney portion 37 of a.v tripmember lwhich compris'esarm 37, ring y,member 3 8-to f-iiigzimmediately.under thegforwardfend of one of the latch members 33. The two trippingmembers are similarly `but oppositely formed and each rotates on shaft36v as an axis when the corresponding lever 35 is moved forwardly. Itwill be apparent from this description that if the right hand lever 35is moved forwardly that the right hand crosshead 29 will be released bythelatch 34 and the left hand sleeve 17 will be released, its latchinglmember SShaV-ing been'raised by the tripping device. lf the left handlever 35 be -moved forwardly it will be apparent that the left handcrosshead 29 and the right hand sleeve 17 will be released while theright hand crosshead will remain in position. In Figure 2 -is clearlyillustrated the position of the parts after the left hand hand lever hasbeen operated.

The' plow beams tend to fall by their Vown weight from the full lineposition to the dotted line position, Figure 3, rotating the axle 15rearwardly and downwardly. Then the plows arev raisedand are ininoperative position, however, they will remain in' such position untilone of the hand levers is operated. Assuming that theleft hand handlever is the one selected it will be seen that the left hand plow beamwill fall without moving relatively to its sleeve 17, and hence withoutrotation. The right hand plow beam has howevernot beenreleased byunlatching the Amember 34 and it has merely swung downwardly about thecrosshead Y29 as a pivot'. The vright hand sleeve 1 7 has however movedrearwardly on the plow beam and has causedVV the same to rotatethrOughQOOias the forward end of the plow beam is Vpivotally connectedto the crosshead 29, thereby causing the plow 27 to fall intooperativeor 'cutting position, as shown vin Figure 7. In this positionone of the plows.

is positioned a short distance ahead of the other which vis desirable.The downward movement of the plow beams is limited by the horizontal`bar 42 against which the longitudinally extending portions of thelaxlestrike. .This bar 42 is fastened to the vertical post 43 bolted to thecenter bar 11 of the frame. A #As the plows'and plow beams are ofconsiderable weight, means is provided for raising them to inoperativeposition without requiring strenuous work on the part of the operator.rllhis means throws the exertion necessary uponvthe draft horses ortractor connected to. the plow. .Rigidly secured to each offthe'wheelsis a notched ring 44 and bolted to each laterally extending U shapedyportion of the axle in such manner as to be freely rotatable is a bar45 having a hookedA end 46 in positionA to engage one of the notches ofthe ring 44, and having at its inner endy an arm 47. To theA ends ofeach ofthe arms 47 is connected. a cord or rope f 48` which extends..forwardly to a position plow iii-to. operative. position.k

where it may be conveniently pulled by the operator.

yVv'lhen one of the levers 35 has beenmanipulated to lower the plows,the hooked arm 46 is thrown rearwardly, asI illustrated in F igure 3,and remains in this position'iintil the operator, by pulling on cord 48,throws it forwardlyso that it engages one of the notches in the ring 44.As both hooks 46 simultaneously engage rings 44 the axle 50 will berotated from its substantially horizontal position to its substantiallyvertical position, lifting the plows from operative to inoperativeposition and sliding the left hand cross head 29; and the right handsleeve 17 forwardly until they are again latchedf 'in inoperativevposition as shown in Figure 1. As the plow beams reach their uppermost'or final and inoperative position the arms 47 of bars 45` strike crosspiece 22 thereby liftinghooks 46 from thev notches at the proper time.This is done when the plgow has reached the end of the furrow and whenthe return journey isy begun theright hand operating lever is operatedto release the plow beams which thereupon fall.k with the left handplows in operative. position, so that the plow may parallell its former.course and yet the fur-rows be thrown in the same direction.

The invention enables a single operator 'to easily and conveniently plowa field on Va steep hillside, and puts no burden upon him in themanipulation ofthe reversing plows other than that of'operating levers35 and cord 48. The device is inexpensive and 4not liable to become outof order in any manner. The invention vmay. be made ina variety of formsofwhich that form disclosed is representative, and isrnot limited in itsscope to this exact desi-gn.

Having thus described the invention what .is claimed as new and desiredtobe secured by Letters Patent is:

l. In a plow of. the `class described, a wheeled` frame, a rotatable andvertically movable plow beam, right and left hand plows secured to saidbeam, and connections including, a sleeve throughwhich the beam extends'with a sliding fit, between said beam 3. In a plow of the class,ywheeledv frame, a crosshead having a` limited sliding movementrelatively,y to s aidframe,

described, a

a plow beam having one end rotatably secured to said crosshead, rightand left hand plows secured to said beam, and means connecting said beamand frame intermediate the crosshead and plows whereby the beam is givena rotary movement as it moves longitudinally with the crosshead, for thepurpose set forth.

4. In a plow of the class described, a wheeled frame, a crosshead havinga limited sliding movement relatively to Vsaid frame, a plow beam havingone end rotatably secured to said crosshead, right and left hand plowssecured to said beam, and means, including a sleeve connected to theframe and receiving the beam with a sliding fit, securing the beam tothe frame intermediate the i crosshead and plows, whereby the beam isgiven a rotary movement as it moves longitudinally with the crosshead,for the purpose set forth.

5. In a plow of the class described, a wheeled frame, a crosshead havinga limited sliding movement relatively to said frame, a plow beam havingone end rotatably secured to said crosshead, right and left hand plowssecured to said beam, vand means including a non-rotatable member,connecting said beam and frame intermediate the crosshead and plowswhereby the beam is given a rotary movement as it moves longitudinallywith the crosshead, said beam and nonrotatable member having mutuallyengaging portions one of which is spiral shaped for effecting therotation of tion of its axis, right and left hand plows secured to eachbeam, and means normally retaining said beams 1n elevated position,

said means comprising two manually operable levers, the operation of oneof which permits both plow beams to fall by gravity with the right handplows in operative position and the operation of the other of whichpermits both beams to fall vwith the left hand plows in operativeposition, one plow beam moving axially a greater distance'- v tion, theoperation of the other of whichvv permits both beams to fall with theright hand plows 'in operative position.

8. In a plow yof the class described, the

combination with a wheeled supporting frame, ofl two plow beamssupported thereon, each plow beam being mounted for rocking movement ina vertical plane and also movement in the direction of its axis, rightand left hand plows secured to each beam, and means normally retainingsaid beams in elevated position, said means in-y cluding two latchesnormally holding each i plow beam, and two manually operable latchreleasing devices, the operation of.l

leither latch devices resulting in the release of three of said latcheswhereby the plow beams are allowed to fall with either two right hand ortwo left hand plows in operative position, depending upon the releasingdevice operated.

In testimony whereof I affix my signature.

MARTIN L. ANDREWS.

